B3722

Schematic:

CIRCUIT DESCRIPTION
When operation of the rear wiper is selected, battery voltage from the rear wiper switch is applied to the rear wiper input of the body control module (BCM) circuit 94. The BCM responds by switching circuit 1445 to ground. This action energizes the rear wiper relay, providing power to the rear wiper motor.

DTC PARAMETERS
^ Ignition is in RUN or ACC position
^ Circuit 1445 is shorted-to-ground or open
^ Output is Off
^ Only on wagons
^ Telltale will illuminate

DIAGNOSTIC AIDS
^ Check for poor connection at the BCM. Inspect harness connectors for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal-to-wire connection (terminal crimped over wire insulation and not conductors).
^ Inspect wiring harness for damage. Check for broken or chaffed insulation.
^ If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.

TEST

Diagnostic Chart: